chore: update ESLint and Prettier (#337)

* chore: update ESLint and Prettier

* chore: update `fix` script

* chore: add .editorconfig back

* chore: add .gitattributes

* chore: update .prettierignore

.gitattributes

@@ -0,0 +1 @@
+* text=auto eol=lf

.prettierignore

@@ -1,3 +1 @@
-.nyc_output/
-cjs/
-tests/snapshots/
+tests/snapshots/

eslint.config.js

@@ -0,0 +1,18 @@
+import globals from 'globals'
+import eslintJs from '@eslint/js'
+import eslintConfigPrettier from 'eslint-config-prettier'
+import eslintPluginN from 'eslint-plugin-n'
+import eslintPluginPromise from 'eslint-plugin-promise'
+
+export default [
+  eslintJs.configs.recommended,
+  eslintPluginN.configs['flat/recommended'],
+  eslintPluginPromise.configs['flat/recommended'],
+  eslintConfigPrettier,
+  {
+    languageOptions: {
+      globals: { ...globals.builtin, ...globals.node },
+    },
+  },
+  { ignores: ['cjs'] },
+]

index.js

@@ -6,14 +6,15 @@ import isPlainObject from 'is-plain-obj'
 import semver from 'semver'
 
 const hasOwn =
+  // eslint-disable-next-line n/no-unsupported-features/es-builtins, n/no-unsupported-features/es-syntax -- will enable later
   Object.hasOwn ||
   // TODO: Remove this when we drop supported for Node.js v14
   ((object, property) => Object.prototype.hasOwnProperty.call(object, property))
 const pipe =
   (fns) =>
   (x, ...args) =>
     fns.reduce((result, fn) => fn(result, ...args), x)
-const onArray = (fn) => (x) => Array.isArray(x) ? fn(x) : x
+const onArray = (fn) => (x) => (Array.isArray(x) ? fn(x) : x)
 const onStringArray = (fn) => (x) =>
   Array.isArray(x) && x.every((item) => typeof item === 'string') ? fn(x) : x
 const uniq = onStringArray((xs) => [...new Set(xs)])